Printing press



June 9, 1925.

R. H. WILDER PRINTING PRESS 1922 2 Sheets-Sheet 1 Filed Jan. 19

' lulllllnlnnlllllmnnluun III-III III F mmfi MW H m m 4 .w a FYW a I T N A TTORNE Y.

June 9, 1925. 1,541,017

, R. H-. WILDER PRINTING. PRESS.

Filed Jan. 19, 1922 2 Sheets$heet 2 INVENTQR. Fz'ci'rard Hazy 71 27447 BY 7 wam ATTORNEY.

Patented June 9, 1925.

UNITED STATES PATENT OFFICE.

rennan HENRY WILDER, or roar HURON, MICHIGAN, ASSIGNOB, or ONE-HALF -To WILLIAM G. BOWEN, or PORT HURON, MICHIGAN.

PRINTING PRESS.

Application filed January 19', 1922. Serial No. 530,236.

To all whom z'tmzay concern:

Be it known that I, RICHARD HENRY VVILDER, a citizen of the United States, residing at Port Huron, county of St. Clair, State of Michigan, have invented a cer-. tain new and useful Improvement in Printing Presses, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

. My invention relates to improvements in printing presses. It particularly relates to inking mechanism adapted for use in con-. nection with the flat bed type of printing press.

An object is to provide in connection with the flat bed printing press of a plateless type, rotary distributing rollers adapted to pick up and convey the ink from the fountain to the form rollers.

Another object is to provide in connection with the mechanism used to pick up the ink from the fountain and convey it to the form rollers, means adapted to distribute the ink in well defined longitudinally segregated blocks on said form rollers These and other objects, together. with details of construction and operation, will more fully appear from the following specification, appended claims and accompanying drawings, in which:

Figure 1 is a side elevation of a printing press equipped with my device; 1

Fig. 2 is a fragmentary plan of the dis tributing rollers.

Fig. 3 is a cross section taken on 3-3 Fig. 2.

Fig. at is an elevation of a roller.

Fig. 5 is a cross section taken on line 5-5 Fig. 4

Fig. 6 is a plan of the printing cluding the form rollers. v

Fig. 7 is an elevation of a divided steel rollershowing theindividual sections separated from each other.

Fig.8 is a similar side elevation showing the separate sections juxtaposed.

Fig. 9 is an elevation of the lower connection of oscillating arm 39. p I

Fig. 9 is an elevation of the construcline divided steel press inink on the rollers.

tion shown in Fig. 9, but taken at right angles to the view in Fig. 9.

In the drawinglet 10 indicate the frame of a printing press. A power driven gear is indicated as 11, which gear 11 engages anothergear 12. Mounted on the same shaftwith gear 12 is. gear 13 which in turn engages large gear 14, whichgear 14: is mounted on shaft 15.; Likewise mounted on shaft 15 is gear 16 which gear 16 engages another gear 17. Positioned above large gear 14 and engaged therewith is small gear 18. Mounted upon the same shaft as gear 18, so as to rotate therewith, is a pulley 19 which drives a chain 20 which chain engages a pulley 21 carried by the roller 22 so as to provide a drive for such roller. A second drive chain 23 extends to steel roller 24: to drive this roller.

Rollers 30, 2e and 25 are linked together as shown in Figs. 2 and 8, so that they vibrate longitudinally as they are rotated. This is an old practicein printing press construction. The longitudinal vibration is of small extent and is intendedto cut the It is provided for, as shown in Fig. 3, by means of a gear 26 splined to the roller shaft 25 which carries the roller '25 which gear 27 which gear-27 is carried bya shaft 27 provided with a head 27, which shaft is mounted in bearing 28 carried by the press. This gear is provided with a worm 28 which. worm engages a carriage member 29, carried by a bar 29 as shown in'Fig. 3. This bar connects individual carriage members 29which are mounted upon extensions of the roller shafts upon which rollers 30, 2 1 and 25 aremounted sothatas the threaded shaft, or worm, 28 is reciprocally rotated the bar vibrates back andforth laterally and produces a longitudinal vibra tion of the several roller shafts and rollers concurrently with the vibration of roller 25. The roller 25 is driven by means of the reciprocating rack member 27 which meshes with gear 27 to reciprocally rotate the same. This is standard construction.

gear '26 engages a The rollers 30 and 24, comprise a roller erably rectangular incross section and indicated by the subletter a as 24 Removable, separable, longitudinal roller sections are provided which may be inserted on this core and secured at adjusted positions by any conventional means such set screws. 31. This feature forms-part of my inven-. tion.

In color work it is particularly desirable that the line of demarkation between the separate colors be preserved. For example if four divisions of color were desired, the steel rollers might be divided as shown in Fig. 6, in which four distinct longitudinal sections "are separated from each other so thateach section may carry its own particular color and this color preserved throughout the succeeding series of correspondingsections. This would provide a sharp dividing line between the separate colors intended for use, and prevent the colors overlapping each other, running together and thereby lowering the quality of the work.

In the conventional type of construction, where a continuous roller is used, there is a tendency} at all times ,f-or the ink to run together on the roller and the; line of contact between the sections of differently colored ink on the roller becomes blurred and produces an unsightly appearance. This tendency is accentuated because of the longi tudinal vibration of the rollers. It is further accentuated by the reciprocating action of the plate, which forms a part of the conventional printing press and which plate takes the ink from the rollers and conveys it to the form rollers- 32'and '33. In my in vention I maintain the colordivision by providing separate longitudinal roll sections. It is obvious that the color divisions in the fountain would agree with the divisions on the roller sections and that the whole would be uniform. I a

I omit the reciprocating plate found in the conventional press and provide instead as the particular feature of my improve,- ment a rotary form -of distribution for conveying the ink from the fountain roller 34; to the form rollers 32 and 33. The fountain itself is indicated as 35 and provided with relatively movable dividers '35 which are adapted to divide the fountain into separate ink containing compartments.

My rotary distribution system comprises a series 'of movable rollers mounted for lateral movement as a unit alternatii'igwith the divided steel rollers and adapted for movement so as to receive ink from 'the steel roller nearest the fountain and conveying it to the succeeding roller further away. These movable rollers are indicated as 36, 37 and 38 and'a-re carried by armsof an oscillating frame or bracket 39 pivoted to the press frame as at 40. The lower end of this bracket is pivoted at 41 to a cam actuated link 4-2. This cam action of the link is shown in Figs. 9 and 9. 'The link is enlarged over the shaft 15 on which is 'm'ounted large gear 14. The link carries opposed cam engagingrol-lers l3 and A4: which are engaged by a cam 45 mounted on shaft 15.

This cam is so shaped as to rock the arm or bracket 39 about its pivot 40 in such a manner that the rollers .36, 37 and 38 are moved laterally as unit forward and backward. Roller 36 takes the ink from fountain roller 34 and conveys it tothe divided steel roller 24'. Rolle'r 37 takes the ink, from divided steel roller 9.4 and conveys it to roller 22. Roller 38 takes the ink from roller "22 and conveys it to divided steel roller 30. Roller 30v deposits the ink on the form roller This completes the function of the machine so far as my "invention is concerned. The

ink is of course deposited by the form rollers on the term itself. I

The movable rollers provided for the rotary distribution take the colors in blocks from the divided steel rollers and deposit the same on the form rollers in like divided blocks. In the old construction where a plate was used the ink would run together on the plate. There would always be a certain amount of overlapping. In rough work this "would not be important. In quality work, however, it becomes exceedingly i-mportant. My construction also permits of a shortening of the press frame itself in that the rotary typeof distribution takes up less space than the distribution provided for by the useo f a reciprocating plate.

What I claim is: 1. In the inking mechanism for a fiat bed printing press, in combination with the ink fountain and fountain roller, form rollers, a se'riesof rotatably moun'ted'stationary and movable rollers adapted to pick up and convey the ink from the fountain rollers to the form rollers, and a rock frame carrying and simultaneously moving the movable rollers. 2. In a printing press, that combination in the inking mechanism which comprises the fountain and fountain roller and the form rollers of a series of stationary spaced apart rolls positioned intermediate the fountain roller and form rollers, an alternating series of movable rollers, and a cam-operand pick up the ink from the stationary rollers and distribute it on the form rollers, and a rock frame having a plurality of sets of arms, each set carrying one of the movable rollers.

4. In a printing press, in combination, a fountain roller, form rollers, a plurality of rotatably mounted spaced apart steel rollers disposed intermediate said fountain roller and form rollers, each of said steel rollers comprising a shaft member carrying a series of removable longitudinal sections adapted to be continuously or separably positioned on said shaft, a series of movable rollers positioned in alternating relationship with said stationary rollers and so mounted as to be moved as a unit first in one direction then the other to pick up the ink from the fountain'rollers and distribute it on the form rollers through the medium of the steel rollers.

In testimony whereof I'sign this specification.

RICHARD HENRY WILDER. 

